Prost! Usain Bolt cheerfully swigs from giant pitchers of beer as he and busty girlfriend Kasi Bennett dress up in Bavarian costumes and get stuck in at Oktoberfest in Munich

And Usain Bolt was certainly seen to be having fun as he joined in with the festivities at Germany's Oktoberfest on Wednesday.

There with his girlfriend Kasi Bennett, the young couple dressed up in their best German-inspired finery and sunk pitchers of beer for the annual festival in Munich.

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Prost! Usain Bolt cheerfully swigs from giant pitchers of beer as he and girlfriend Kasi Bennett dress up and get stuck in at Oktoberfest in Munich

Getting stuck in: Usain Bolt was certainly seen to be having fun as he joined in with the festivities at Germany 's Oktoberfest on Wednesday. There with his girlfriend Kasi Bennett, the young couple dressed up in their best German-inspired finery and sunk pitchers of beer for the annual festival in Munich

Usain, 31, looked thrilled to be at the festivities in a checked red and white shirt with lederhosen to compliment the Bavarian attire.

He grinned as he enjoyed large glasses of beer next to Jamaican model Kasi, 27, who wore an off the shoulder and rather busty white lacy top.

Yachting: Olympic legend Usain has been living the high life and partied on a yacht this week

Love: The star was joined by girlfriend Kasi who documented the trip on social media

Wow: The Jamaican beauty put on quite the eye-popping display as she partied with her beau

Dance: Ever the showman, the athlete played up to the camera, as friends danced behind him

While he will no longer be gracing the track, he is widely expected to remain one of the key faces of world athletics, and has already confirmed plans to continue his promotional work for primary sponsors Puma.

Usain revealed earlier in the month that he believes his sporting career is only just getting started, as he revealed he is fielding offers from several clubs to become the next football star.

Despite being a rookie in the sport, the eight-time Olympic champion has set the bar high, saying he plans to play for one of the biggest teams in world football - Manchester United.

Usain Bolt (pictured with Sir Alex Ferguson) believes his sporting career is only just getting started and plans to play for Manchester United

Usain - who was in Sydney on Friday to launch an Optus store in the city centre - has long been an admirer of the English giants and has let it be known he has his sights set on a new career there.

'One of my biggest dreams is to try play for Manchester United and play football, it's something that's on my mind,' he told The Saturday Telegraph.

He added: 'My big dream would be to play for Manchester United because it's my favourite team since I was young, but there are other teams in the Premier League I'd definitely want to try.'

Big fan: Usain (centre) has long been an admirer of the English giants and has let it be known he has his sights set on a new career there

In the works? Usain met Manchester United legends including Sir Bobby Charlton (pictured) last month

The 31-year-old said he has 'a lot' of different offers from teams that he has considered.

But he has to overcome a hamstring injury he sensationally sustained in his final race last month, before he can consider them.

'It's (football) something I always said I'd be good at and something I feel I should try post-retirement,' he said.

Known as 'the fastest man alive', Usain said he only intends to truly slow down once he has children.

Dreams: 'One of my biggest dreams is to try play for Manchester United and play football, it's something that's on my mind,' the eight-time Olympian said